Camera optical lens

ABSTRACT

The present disclosure discloses a camera optical lens. The camera optical lens including, in an order from an object side to an image side, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens. The camera optical lens further satisfies specific conditions.

FIELD OF THE PRESENT DISCLOSURE

The present disclosure relates to optical lens, in particular to acamera optical lens suitable for handheld devices such as smart phonesand digital cameras and imaging devices.

DESCRIPTION OF RELATED ART

With the emergence of smart phones in recent years, the demand forminiature camera lens is increasing day by day, but the photosensitivedevices of general camera lens are no other than Charge Coupled Device(CCD) or Complementary metal-Oxide Semiconductor Sensor (CMOS sensor),and as the progress of the semiconductor manufacturing technology makesthe pixel size of the photosensitive devices shrink, coupled with thecurrent development trend of electronic products being that theirfunctions should be better and their shape should be thin and small,miniature camera lens with good imaging quality therefor has become amainstream in the market. In order to obtain better imaging quality, thelens that is traditionally equipped in mobile phone cameras adopts athree-piece or four-piece lens structure. And, with the development oftechnology and the increase of the diverse demands of users, and underthis circumstances that the pixel area of photosensitive devices isshrinking steadily and the requirement of the system for the imagingquality is improving constantly, the five-piece, six-piece andseven-piece lens structure gradually appear in lens design. There is anurgent need for ultra-thin wide-angle camera lenses which have goodoptical characteristics and the chromatic aberration of which is fullycorrected.

BRIEF DESCRIPTION OF THE DRAWINGS

Many aspects of the exemplary embodiments can be better understood withreference to the following drawings. The components in the drawing arenot necessarily drawn to scale, the emphasis instead being placed uponclearly illustrating the principles of the present disclosure.

FIG. 1 is a schematic diagram of a camera optical lens in accordancewith a first embodiment of the present invention;

FIG. 2 shows the longitudinal aberration of the camera optical lensshown in FIG. 1;

FIG. 3 shows the lateral color of the camera optical lens shown in FIG.1;

FIG. 4 presents a schematic diagram of the field curvature anddistortion of the camera optical lens shown in FIG. 1;

FIG. 5 is a schematic diagram of a camera optical lens in accordancewith a second embodiment of the present invention;

FIG. 6 presents the longitudinal aberration of the camera optical lensshown in FIG. 5;

FIG. 7 presents the lateral color of the camera optical lens shown inFIG. 5;

FIG. 8 presents the field curvature and distortion of the camera opticallens shown in FIG. 5.

FIG. 9 is a schematic diagram of a camera optical lens in accordancewith a third embodiment of the present invention;

FIG. 10 presents the longitudinal aberration of the camera optical lensshown in FIG. 9;

FIG. 11 presents the lateral color of the camera optical lens shown inFIG. 9;

FIG. 12 presents the field curvature and distortion of the cameraoptical lens shown in FIG. 9.

DETAILED DESCRIPTION OF THE EXEMPLARY EMBODIMENTS

The present disclosure will hereinafter be described in detail withreference to several exemplary embodiments. To make the technicalproblems to be solved, technical solutions and beneficial effects of thepresent disclosure more apparent, the present disclosure is described infurther detail together with the figure and the embodiments. It shouldbe understood the specific embodiments described hereby is only toexplain the disclosure, not intended to limit the disclosure.

Embodiment 1

As referring to FIG. 1, the present invention provides a camera opticallens 10. FIG. 1 shows the camera optical lens 10 of embodiment 1 of thepresent invention, the camera optical lens 10 comprises 7 lenses.Specifically, from the object side to the image side, the camera opticallens 10 comprises in sequence: an aperture S1, a first lens L1, a secondlens L2, a third lens L3, a fourth lens L4, a fifth lens L5, a sixthlens L6 and a seventh lens L7. Optical element like optical filter GFcan be arranged between the seventh lens L7 and the image surface Si.The first lens L1 is made of plastic material, the second lens L2 ismade of plastic material, the third lens L3 is made of plastic material,the fourth lens L4 is made of plastic material, the fifth lens L5 ismade of glass material, the sixth lens L6 is made of glass material, theseventh lens L7 is made of plastic material;

Here, the focal length of the whole camera optical lens is defined as f,the focal length of the first lens L1 is defined as f1, the focal lengthof the third lens L3 is defined as f3, the focal length of the fourthlens L4 is defined as f4, the refractive power of the fifth lens is n5,the refractive power of the sixth lens is n6, the curvature radius ofthe object side surface of the seventh lens L7 is defined as R13, thecurvature radius of the image side surface of the seventh lens L7 isdefined as R14. The f, f1, f3, f4, n4, d7, TTL, R13 and R14 satisfy thefollowing condition: 1

f1/f

1.5, 1.7

n5

2.2, −2

f3/f4

2; −10

(R13+R14)/(R13−R14)

10; 1.7

n6

2.2.

Condition 1

f1/f

1.5 fixes the positive refractive power of the first lens L1. If thelower limit of the set value is exceeded, although it benefits the ultrathin development of lenses, but the positive refractive power of thefirst lens L1 will be too strong, problem like aberration is difficultto be corrected, and it is also unfavorable for wide-angle developmentof lens. On the contrary, if the higher limit of the set value isexceeded, the positive refractive power of the first lens L1 becomes tooweak, it is then difficult to develop ultra thin lenses. Preferably, thefollowing condition shall be satisfied, 1.2

f1/f

1.5.

Condition 1.7

n5

2.2 fixes the refractive power of the fifth lens L5, refractive powerwithin this range benefits the ultra thin development of lenses, and italso benefits the correction of aberration. Preferably, the followingcondition shall be satisfied, 1.7

n5

1.8.

Condition −2

f3/f4

2 fixes the ratio between the focal length f3 of the third lens L3 andthe focal length f4 of the fourth lens L4, a ratio within this range caneffectively reduce the sensitivity of lens group used in camera andfurther enhance the imaging quality. Preferably, the following conditionshall be satisfied, −2

f3/f4

−1.

Condition −10

(R13+R14)/(R13−R14)

10 fixes the shape of the seventh lens L7, when the value is beyond thisrange, with the development into the direction of ultra thin andwide-angle lenses, problem like aberration of the off-axis picture angleis difficult to be corrected. Preferably, the following condition shallbe satisfied, −1

(R13+R14)/(R13−R14)

1.

Condition 1.7

n6

2.2 fixes the refractive power of the sixth lens L6. Preferably, thefollowing condition shall be satisfied, 1.7

n6

1.8.

When the focal length of the camera optical lens 10 of the presentinvention, the focal length of each lens, the refractive power of therelated lens, and the total optical length, the thickness on-axis andthe curvature radius of the camera optical lens satisfy the aboveconditions, the camera optical lens 10 has the advantage of highperformance and satisfies the design requirement of low TTL.

In this embodiment, the object side surface of the first lens L1 is aconvex surface relative to the proximal axis, its image side surface isa concave surface relative to the proximal axis, and it has positiverefractive power; the focal length of the whole camera optical lens isf, the focal length of the first lens L1 is f1, the curvature radius ofthe object side surface of the first lens L1 is R1, the curvature radiusof the image side surface of the first lens L1 is R2 and the thicknesson-axis of the first lens L1 is d1, they satisfy the followingcondition: −4.68

(R1+R2)/(R1−R2)

−1.18, this condition reasonably controls the shape of the first lens,then the first lens can effectively correct the spherical aberration ofthe system; if the condition 0.28

d1

0.88 is met it is beneficial for the realization of ultra-thin lens.Preferably, the following condition shall be satisfied, −2.93

(R1+R2)/(R1−R2)

−1.47; 0.44

d1

0.7.

In this embodiment, the object side surface of the second lens L2 is aconvex surface relative to the proximal axis, its image side surface isa concave surface relative to the proximal axis, and it has negativerefractive power; the focal length of the whole camera optical lens 10is f, the focal length of the second lens L2 is f2, the curvature radiusof the object side surface of the second lens L2 is R3, the curvatureradius of image side surface of the second lens L2 is R4 and thethickness on-axis of the second lens L2 is d3, they satisfy thefollowing condition: when the condition −20.01

f2/f

−3.24 is met, the negative refractive power of the second lens L2 iscontrolled within reasonable scope, the spherical aberration caused bythe first lens L1 which has positive refractive power and the fieldcurvature of the system then can be reasonably and effectively balanced;the condition 3.14

(R3+R4)/(R3−R4)

17.5 fixes the shape of the second lens L2, when value is beyond thisrange, with the development into the direction of ultra thin andwide-angle lenses, problem like on-axis chromatic aberration isdifficult to be corrected; if the condition 0.18

d3

0.6 is met, it is beneficial for the realization of ultra-thin lenses.Preferably, the following conditions shall be satisfied, −12.51

f2/f

−4.05; 5.03

(R3+R4)/(R3−R4)

14; 0.29

d3

0.48.

In this embodiment, the object side surface of the third lens L3 is aconcave surface relative to the proximal axis, its image side surface isa convex surface relative to the proximal axis, and it has negativerefractive power; the focal length of the whole camera optical lens 10is f, the focal length of the third lens L3 is f3, the curvature radiusof the object side surface of the third lens L3 is R5, the curvatureradius of the image side surface of the third lens L3 is R6 and thethickness on-axis of the third lens L3 is d5, they satisfy thecondition: −11.02

f3/f

−3, by meeting this condition, it is helpful for the system to obtaingood ability in balancing the field curvature, so that the image qualitycan be effectively improved; by meeting the condition −8.76

(R5+R6)/(R5−R6)

−2.46 the shape of the third lens L3 can be effectively controlled, itis beneficial for the shaping of the third lens L3 and bad shaping andstress generation due to extra large curvature of surface of the thirdlens L3 can be avoided; when the condition 0.1

d5

0.33 is met, it is beneficial for the realization of ultra-thin lenses.Preferably, the following conditions shall be satisfied, −6.89

f3/f

−3.75; −5.48

(R5+R6)/(R5−R6)

−3.08; 0.17

d5

0.26.

In this embodiment, the object side surface of the fourth lens L4 is aconvex surface relative to the proximal axis, its image side surface isa concave surface relative to the proximal axis, and it has positiverefractive power; the focal length of the whole camera optical lens 10is f, the focal length of the fourth lens L4 is f4, the curvature radiusof the object side surface of the fourth lens L4 is R7, the curvatureradius of the image side surface of the fourth lens L4 is R8 and thethickness on-axis of the fourth lens L4 is d7, they satisfy thecondition: 1.62

f4/f

5.61, the appropriate distribution of refractive power makes it possiblethat the system has better imaging quality and lower sensitivity; thecondition −2.59

(R7+R8)/(R7−R8)

−0.72 fixes the shape of the fourth lens L4, when beyond this range,with the development into the direction of ultra thin and wide-anglelens, the problem like chromatic aberration is difficult to becorrected; when the condition 0.23

d7

0.75 is met, it is beneficial for realization of ultra-thin lenses.Preferably, the following conditions shall be satisfied, 2.59

f4/f

4.49; −1.62

(R7+R8)/(R7−R8)

−0.9; 0.37

d7

0.6.

In this embodiment, the object side surface of the fifth lens L5 is aconcave surface relative to the proximal axis, its image side surface isa convex surface relative to the proximal axis, and it has positiverefractive power; the focal length of the whole camera optical lens 10is f, the focal length of the fifth lens L5 is f5, the curvature radiusof the object side surface of the fifth lens L5 is R9, the curvatureradius of the image side surface of the fifth lens L5 is R10 and thethickness on-axis of the fifth lens L5 is d9, they satisfy thecondition: 0.26

f5/f

0.8, the limitation on the fifth lens L5 can effectively make the lightangle of the camera lens flat and the tolerance sensitivity reduces; thecondition 0.58

(R9+R10)/(R9−R10)

1.8 fixes the shape of the fifth lens L5, when beyond this range, withthe development into the direction of ultra thin and wide-angle lens,the problem like off-axis chromatic aberration is difficult to becorrected; when the condition 0.34

d9

1.19 is met, it is beneficial for the realization of ultra-thin lens.Preferably, the following conditions shall be satisfied, 0.41

f5/f

0.64; 0.93

(R9+R10)/(R9−R10)

1.44; 0.55

d9

0.95.

In this embodiment, the object side surface of the sixth lens L6 is aconcave surface relative to the proximal axis, its image side surface isa convex surface relative to the proximal axis, and it has negativerefractive power; the focal length of the whole camera optical lens 10is f, the focal length of the sixth lens L6 is f6, the curvature radiusof the object side surface of the sixth lens L6 is R11, the curvatureradius of the image side surface of the sixth lens L6 is R12 and thethickness on-axis of the sixth lens L6 is d11, they satisfy thecondition: −4.48

f6/f

−1.22 the appropriate distribution of refractive power makes it possiblethat the system has better imaging quality and lower sensitivity; thecondition −3.51

(R11+R12)/(R11−R12)

−0.98 fixes the shape of the sixth lens L6, when beyond this range, withthe development into the direction of ultra thin and wide-angle lenses,the problem like off-axis chromatic aberration is difficult to becorrected; when the condition 0.22

d11

0.7, is met, it is beneficial for the realization of ultra-thin lens.Preferably, the following conditions shall be satisfied, −2.8

f6/f

−1.53; −2.19

(R11+R12)/(R11−R12)

−1.22; 0.35

d11

0.56.

In this embodiment, the object side surface of the seventh lens L7 is aconcave surface relative to the proximal axis, its image side surface isa concave surface relative to the proximal axis, and it has negativerefractive power; the focal length of the whole camera optical lens 10is f, the focal length of the seventh lens L7 is f7 and the thicknesson-axis of the seventh lens L7 is d13, they satisfy the conditions −1.31

f7/f

−0.39, appropriate distribution of refractive power makes it possiblethat the system has better imaging quality and lower sensitivity; whenthe condition 0.15

d13

0.45 is met, it is beneficial for the realization of ultra-thin lens.Preferably, the following conditions shall be satisfied, −0.82

f7/f

−0.49; 0.24

d13

0.36.

In this embodiment, the total optical length TTL of the camera opticallens 10 is less than or equal to 6.25 mm, it is beneficial for therealization of ultra-thin lenses. Preferably, the total optical lengthTTL of the camera optical lens 10 is less than or equal to 5.97.

In this embodiment, the aperture F number of the camera optical lens 10is less than or equal to 1.83. A large aperture has better imagingperformance. Preferably, the aperture F number of the camera opticallens 10 is less than or equal to 1.80.

With such design, the total optical length TTL of the whole cameraoptical lens 10 can be made as short as possible, thus theminiaturization characteristics can be maintained.

In the following, an example will be used to describe the camera opticallens 10 of the present invention. The symbols recorded in each exampleare as follows. The unit of distance, radius and center thickness is mm.

TTL: Optical length (the distance on-axis from the object side surfaceto the image side surface of the first lens L1);

Preferably, inflexion points and/or arrest points can also be arrangedon the object side surface and/or image side surface of the lens, sothat the demand for high quality imaging can be satisfied, thedescription below can be referred for specific implementable scheme.

The design information of the camera optical lens 10 in the firstembodiment of the present invention is shown in the following, the unitof the focal length, distance, radius and center thickness is mm.

The design information of the camera optical lens 10 in the firstembodiment of the present invention is shown in the tables 1 and 2.

TABLE 1 R d nd vd S1 ∞ d0= −0.354 R1 2.002 d1= 0.583 nd1 1.5441 v1 56.12R2 7.228 d2= 0.042 R3 4.338 d3= 0.365 nd2 1.6510 v2 21.51 R4 3.146 d4=0.556 R5 −4.949 d5= 0.214 nd3 1.6422 v3 22.41 R6 −8.623 d6= 0.046 R77.229 d7= 0.462 nd4 1.5441 v4 56.12 R8 56.286 d8= 0.473 R9 −19.157 d9=0.741 nd5 1.7067 v5 56.12 R10 −1.447 d10= 0.033 R11 −4.780 d11= 0.466nd6 1.7149 v6 29.91 R12 −18.178 d12= 0.356 R13 −2.988 d13= 0.300 nd71.5352 v7 56.12 R14 2.527 d14= 0.500 R15 ∞ d15= 0.210 ndg 1.5168 vg64.17 R16 ∞ d16= 0.260

In which, the meaning of the various symbols is as follows.

S1: Aperture;

R: The curvature radius of the optical surface, the central curvatureradius in case of lens;

R1: The curvature radius of the object side surface of the first lensL1;

R2: The curvature radius of the image side surface of the first lens L1;

R3: The curvature radius of the object side surface of the second lensL2;

R4: The curvature radius of the image side surface of the second lensL2;

R5: The curvature radius of the object side surface of the third lensL3;

R6: The curvature radius of the image side surface of the third lens L3;

R7: The curvature radius of the object side surface of the fourth lensL4;

R8: The curvature radius of the image side surface of the fourth lensL4;

R9: The curvature radius of the object side surface of the fifth lensL5;

R10: The curvature radius of the image side surface of the fifth lensL5;

R11: The curvature radius of the object side surface of the sixth lensL6;

R12: The curvature radius of the image side surface of the sixth lensL6;

R13: The curvature radius of the object side surface of the seventh lensL7;

R14: The curvature radius of the image side surface of the seventh lensL7;

R15: The curvature radius of the object side surface of the opticalfilter GF;

R16: The curvature radius of the image side surface of the opticalfilter GF;

d: The thickness on-axis of the lens and the distance on-axis betweenthe lens;

d0: The distance on-axis from aperture S1 to the object side surface ofthe first lens L1;

d1: The thickness on-axis of the first lens L1;

d2: The distance on-axis from the image side surface of the first lensL1 to the object side surface of the second lens L2;

d3: The thickness on-axis of the second lens L2;

d4: The distance on-axis from the image side surface of the second lensL2 to the object side surface of the third lens L3;

d5: The thickness on-axis of the third lens L3;

d6: The distance on-axis from the image side surface of the third lensL3 to the object side surface of the fourth lens L4;

d7: The thickness on-axis of the fourth lens L4;

d8: The distance on-axis from the image side surface of the fourth lensL4 to the object side surface of the fifth lens L5;

d9: The thickness on-axis of the fifth lens L5;

d10: The distance on-axis from the image side surface of the fifth lensL5 to the object side surface of the sixth lens L6;

d11: The thickness on-axis of the sixth lens L6;

d12: The distance on-axis from the image side surface of the sixth lensL6 to the object side surface of the seventh lens L7;

d13: The thickness on-axis of the seventh lens L7;

d14: The distance on-axis from the image side surface of the seventhlens L7 to the object side surface of the optical filter GF;

d15: The thickness on-axis of the optical filter GF;

d16: The distance on-axis from the image side surface to the imagesurface of the optical filter GF;

nd: The refractive power of the d line;

nd1: The refractive power of the d line of the first lens L1;

nd2: The refractive power of the d line of the second lens L2;

nd3: The refractive power of the d line of the third lens L3;

nd4: The refractive power of the d line of the fourth lens L4;

nd5: The refractive power of the d line of the fifth lens L5;

nd6: The refractive power of the d line of the sixth lens L6;

nd7: The refractive power of the d line of the seventh lens L7;

ndg: The refractive power of the d line of the optical filter GF;

vd: The abbe number;

v1: The abbe number of the first lens L1;

v2: The abbe number of the second lens L2;

v3: The abbe number of the third lens L3;

v4: The abbe number of the fourth lens L4;

v5: The abbe number of the fifth lens L5;

v6: The abbe number of the sixth lens L6;

v7: The abbe number of the seventh lens L7;

vg: The abbe number of the optical filter GF;

Table 2 shows the aspherical surface data of the camera optical lens 10in the embodiment 1 of the present invention.

TABLE 2 Conic Index Aspherical Surface Index k A4 A6 A8 A10 A12 A14 A16R1 −1.2460E−01 1.0288E−02 7.4202E−03 −2.2010E−03 8.7536E−04 1.6808E−037.1866E−04 −6.8821E−04 R2 −1.0000E+02 −3.9465E−03 −1.2125E−03 5.8488E−036.3560E−04 −3.8103E−03 −1.2039E−03 1.5659E−03 R3 −2.3737E+01 −2.3841E−02−2.0525E−03 3.2756E−03 −4.5484E−03 7.1821E−04 −2.6632E−05 9.6229E−04 R4−3.9242E+00 −5.3601E−03 −8.2092E−03 1.6058E−03 −2.2598E−03 −1.8197E−03−1.4605E−03 3.7215E−03 R5 1.6709E+01 −6.3637E−03 −4.4610E−02 −2.5218E−02−2.6911E−04 3.6149E−03 −4.7785E−03 4.0337E−03 R6 2.2910E+01 −7.0398E−03−3.5434E−02 −5.7821E−03 4.5853E−03 3.5537E−03 8.9469E−04 −1.3666E−03 R77.4299E+00 −6.2930E−02 1.1213E−02 3.2797E−03 −4.0800E−04 −2.2229E−048.6180E−05 4.5126E−05 R8 9.7572E+01 −6.4248E−02 2.2075E−03 −4.7644E−04−1.1259E−03 −2.1774E−04 2.0657E−04 1.6240E−04 R9 −1.0000E+02 −3.1242E−022.3638E−03 1.5732E−03 −1.2713E−03 −1.3489E−04 3.5312E−05 1.1002E−05 R10−3.6526E+00 −5.0443E−02 1.6877E−02 −5.7591E−04 −2.0496E−04 −3.7557E−055.9129E−06 −2.2174E−06 R11 1.8514E+00 −8.8347E−03 3.0697E−04 9.2228E−059.4340E−06 3.5118E−06 9.8198E−07 8.8307E−08 R12 7.6087E+00 −1.1926E−022.6065E−04 4.5093E−05 2.8944E−06 −9.7456E−07 −2.5721E−08 7.6035E−08 R13−2.0767E−01 3.4581E−03 2.7024E−03 2.3593E−05 −1.5360E−05 −9.4474E−071.0278E−08 1.2876E−08 R14 −1.5473E+01 −2.2735E−02 3.6687E−03 −4.5003E−042.0348E−05 8.0817E−07 −1.0693E−08 −6.9170E−09

Among them, K is a conic index, A4, A6, A8, A10, A12, A14, A16 areaspheric surface indexes.

IH: Image heighty=(x ² /R)/[1+{1−(k+1)(x ² /R ²)}^(1/2) ]+A4x ⁴ +A6x ⁶ +A8x ⁸ +A10x ¹⁰+A12x ¹² +A14x ¹⁴ +A16x ¹⁶   (1)

For convenience, the aspheric surface of each lens surface uses theaspheric surfaces shown in the above condition (1). However, the presentinvention is not limited to the aspherical polynomials form shown in thecondition (1).

Table 3 and table 4 show the inflexion points and the arrest pointdesign data of the camera optical lens 10 lens in embodiment 1 of thepresent invention. In which, R1 and R2 represent respectively the objectside surface and image side surface of the first lens L1, R3 and R4represent respectively the object side surface and image side surface ofthe second lens L2, R5 and R6 represent respectively the object sidesurface and image side surface of the third lens L3, R7 and R8 representrespectively the object side surface and image side surface of thefourth lens L4, R9 and R10 represent respectively the object sidesurface and image side surface of the fifth lens L5, R11 and R12represent respectively the object side surface and image side surface ofthe sixth lens L6, R13 and R14 represent respectively the object sidesurface and image side surface of the seventh lens L7. The data in thecolumn named “inflexion point position” are the vertical distances fromthe inflexion points arranged on each lens surface to the optic axis ofthe camera optical lens 10. The data in the column named “arrest pointposition” are the vertical distances from the arrest points arranged oneach lens surface to the optic axis of the camera optical lens 10.

TABLE 3 Inflexion Inflexion point number Inflexion point position 1point position 2 R1 R2 2 0.955 1.075 R3 2 0.645 1.075 R4 R5 R6 R7 20.475 1.085 R8 2 0.155 1.305 R9 R10 2 1.425 1.455 R11 1 1.795 R12 12.065 R13 1 1.495 R14 1 0.745

TABLE 4 Arrest Arrest point number Arrest point position 1 pointposition 2 R1 R2 R3 R4 R5 R6 R7 2 0.905 1.205 R8 1 0.265 R9 R10 R11 R121 2.415 R13 1 2.465 R14 1 1.665

FIG. 2 and FIG. 3 show the longitudinal aberration and lateral colorschematic diagrams after light with a wavelength of 435.8 nm, 486.1 nm,546.1 nm, 587.6 nm and 656.3 nm passes the camera optical lens 10 in thefirst embodiment. FIG. 4 shows the field curvature and distortionschematic diagrams after light with a wavelength of 546.1 nm passes thecamera optical lens 10 in the first embodiment, the field curvature S inFIG. 4 is a field curvature in the sagittal direction, T is a fieldcurvature in the meridian direction.

Table 13 shows the various values of the examples 1, 2, 3 and the valuescorresponding with the parameters which are already specified in theconditions.

As shown in Table 13, the first embodiment satisfies the variousconditions.

In this embodiment, the pupil entering diameter of the camera opticallens is 2.289 mm, the full vision field image height is 3.475 mm, thevision field angle in the diagonal direction is 80.00°, it haswide-angle and is ultra-thin, its on-axis and off-axis chromaticaberrations are fully corrected, and it has excellent opticalcharacteristics.

Embodiment 2

Embodiment 2 is basically the same as embodiment 1, the meaning of itssymbols is the same as that of embodiment 1, in the following, only thedifferences are described.

Table 5 and table 6 show the design data of the camera optical lens 20in embodiment 2 of the present invention.

TABLE 5 R d nd v d S1 ∞ d0= −0.374 R1 2.030 d1= 0.568 nd1 1.5441 v156.12 R2 6.154 d2= 0.042 R3 4.060 d3= 0.389 nd2 1.6510 v2 21.51 R4 3.116d4= 0.560 R5 −5.049 d5= 0.217 nd3 1.6422 v3 22.41 R6 −8.281 d6= 0.040 R77.082 d7= 0.475 nd4 1.5441 v4 56.12 R8 188.177 d8= 0.487 R9 −16.635 d9=0.790 nd5 1.7465 v5 56.12 R10 −1.453 d10= 0.032 R11 −4.660 d11= 0.431nd6 1.7513 v6 29.91 R12 −17.012 d12= 0.343 R13 −3.258 d13= 0.300 nd71.5352 v7 56.12 R14 2.197 d14= 0.500 R15 ∞ d15= 0.210 ndg 1.5168 vg64.17 R16 ∞ d16= 0.293

Table 6 shows the aspherical surface data of each lens of the cameraoptical lens 20 in embodiment 2 of the present invention.

TABLE 6 Conic Index Aspherical Surface Index k A4 A6 A8 A10 A12 A14 A16R1 −1.2836E−01  1.0098E−02 7.6162E−03 −1.9839E−03   9.3570E−04 1.6387E−03 6.6689E−04 −6.8847E−04  R2 −9.9904E+01 −4.1944E−03−1.5678E−03  5.5856E−03  5.4539E−04 −3.8192E−03 −1.2437E−03  1.4027E−03R3 −2.5955E+01 −2.4788E−02 −2.3997E−03  3.0694E−03 −4.7967E−03 4.8295E−04 −1.3656E−04  1.0207E−03 R4 −3.7277E+00 −4.8740E−03−8.4904E−03  1.3282E−03 −2.3378E−03 −1.7811E−03 −1.3481E−03  3.9504E−03R5  1.6679E+01 −5.9275E−03 −4.3659E−02  −2.5403E−02  −1.1341E−03 2.7010E−03 −5.5056E−03  3.3906E−03 R6  2.3213E+01 −7.0554E−03−3.5764E−02  −5.8695E−03   4.3660E−03  3.2260E−03 6.7001E−04−1.3209E−03  R7  7.3450E+00 −6.2948E−02 1.1162E−02 3.1666E−03−4.2756E−04 −2.0057E−04 9.8796E−05 3.6227E−05 R8  9.9708E+01 −6.3497E−022.4773E−03 −4.6791E−04  −1.1336E−03 −2.1696E−04 2.0749E−04 1.6180E−04 R9−9.6199E+01 −3.0826E−02 2.5644E−03 1.6699E−03 −1.2469E−03 −1.3193E−043.3810E−05 9.6975E−06 R10 −3.8811E+00 −4.9251E−02 1.6508E−02−7.0346E−04  −2.1989E−04 −3.7533E−05 6.4010E−06 −2.1808E−06  R11 1.7425E+00 −8.3021E−03 3.7260E−04 9.8972E−05  1.0238E−05  3.5546E−069.1915E−07 5.0882E−08 R12 −1.7285E+01 −1.1485E−02 3.0431E−04 4.9265E−05 3.0632E−06 −9.7695E−07 −2.3835E−08  7.7520E−08 R13 −1.8248E−01 3.0894E−03 2.6713E−03 1.9768E−05 −1.5743E−05 −1.0029E−06 3.6624E−091.2581E−08 R14 −1.3176E+01 −2.1817E−02 3.7194E−03 −4.4377E−04  2.0848E−05  8.0088E−07 −1.0758E−08  −6.5764E−09 

Tables 7 and 8 show the inflexion point and arrest point design data ofeach lens of the camera optical lens 20 in embodiment 2 of the presentinvention.

TABLE 7 Inflexion point Inflexion point Inflexion point number position1 position 2 R1 R2 1 0.875 R3 2 0.625 1.105 R4 R5 R6 R7 R8 2 0.475 1.085R9 2 0.085 1.305 R10 R11 1 1.795 R12 1 2.025 R13 1 1.445 R14 1 0.765

TABLE 8 Arrest Arrest point Arrest point point number position 1position 2 R1 R2 R3 R4 R5 R6 R7 R8 2 0.925 1.195 R9 1 0.145 R10 R11 R121 2.375 R13 1 2.335 R14 1 1.845

FIG. 6 and FIG. 7 show the longitudinal aberration and lateral colorschematic diagrams after light with a wavelength of 435.8 nm, 486.1 nm,546.1 nm, 587.6 nm and 656.3 nm passes the camera optical lens 20 in thesecond embodiment. FIG. 8 shows the field curvature and distortionschematic diagrams after light with a wavelength of 546.1 nm passes thecamera optical lens 20 in the second embodiment.

As shown in Table 13, the second embodiment satisfies the variousconditions.

In this embodiment, the pupil entering diameter of the camera opticallens is 2.286 mm, the full vision field image height is 3.475 mm, thevision field angle in the diagonal direction is 80.07 degrees, it haswide-angle and is ultra-thin, its on-axis and off-axis chromaticaberrations are fully corrected, and it has excellent opticalcharacteristics.

Embodiment 3

Embodiment 3 is basically the same as embodiment 1, the meaning of itssymbols is the same as that of embodiment 1, in the following, only thedifferences are described.

The design information of the camera optical lens 30 in the thirdembodiment of the present invention is shown in the tables 9 and 10.

TABLE 9 R d nd vd S1 ∞ d0= −0.364 R1 2.078 d1= 0.551 nd1 1.5441 v1 56.12R2 5.173 d2= 0.040 R3 3.636 d3= 0.401 nd2 1.6510 v2 21.51 R4 3.062 d4=0.562 R5 −5.269 d5= 0.210 nd3 1.6422 v3 22.41 R6 −8.386 d6= 0.038 R76.866 d7= 0.501 nd4 1.5441 v4 56.12 R8 166.218 d8= 0.505 R9 −17.257 d9=0.690 nd5 1.7853 v5 56.12 R10 −1.552 d10= 0.043 R11 −4.566 d11= 0.448nd6 1.7548 v6 29.91 R12 −24.186 d12= 0.384 R13 −2.783 d13= 0.299 nd71.5352 v7 56.12 R14 3.065 d14= 0.500 R15 ∞ d15= 0.210 ndg 1.5168 vg64.17 R16 ∞ d16= 0.306

Table 10 shows the aspherical surface data of each lens of the cameraoptical lens 30 in embodiment 3 of the present invention.

TABLE 10 Conic Index Aspherical Surface Index k A4 A6 A8 A10 A12 A14 A16R1 −1.5086E−01 9.3868E−03 7.8753E−03 −1.7198E−03 9.9279E−04 1.5666E−035.7026E−04 −7.4816E−04 R2 −1.0002E+02 −4.9258E−03 −2.0425E−03 5.4789E−035.3984E−04 −3.8463E−03 −1.2685E−03 1.4162E−03 R3 −2.7953E+01 −2.5114E−02−2.2561E−03 3.0123E−03 −4.9213E−03 4.5174E−04 −2.1916E−05 1.1492E−03 R4−3.6438E+00 −4.8101E−03 −9.1325E−03 1.8177E−03 −1.4001E−03 −1.2159E−03−1.1957E−03 4.4035E−03 R5 1.6844E+01 −7.1322E−03 −4.2748E−02 −2.5594E−02−1.9155E−03 2.2536E−03 −5.3586E−03 3.7068E−03 R6 2.1270E+01 −5.7582E−03−3.6184E−02 −5.8765E−03 4.5127E−03 3.2240E−03 5.7960E−04 −1.3548E−03 R79.2340E+00 −6.2109E−02 1.2153E−02 3.4036E−03 −3.8968E−04 −1.7827E−041.1067E−04 2.2560E−05 R8 1.0000E+02 −6.2728E−02 1.9942E−03 −7.3167E−04−1.1501E−03 −1.8593E−04 2.2185E−04 1.6085E−04 R9 −9.2568E+01 −3.1480E−022.2536E−03 1.5961E−03 −1.2538E−03 −1.2700E−04 3.5564E−05 9.2864E−06 R10−3.8098E+00 −4.9663E−02 1.6055E−02 −7.4900E−04 −2.1342E−04 −3.3244E−058.1408E−06 −1.4245E−06 R11 1.6300E+00 −6.6972E−03 2.5321E−04 8.4576E−051.1974E−05 4.2717E−06 9.2759E−07 −1.2051E−08 R12 3.6809E+01 −1.1926E−023.6237E−04 4.0747E−05 −2.1250E−07 −1.5609E−06 −9.7077E−08 7.1011E−08 R13−2.3514E−01 3.8460E−03 2.7226E−03 3.0265E−05 −1.4247E−05 −8.6637E−071.9979E−09 9.8266E−09 R14 −2.0316E+01 −2.3182E−02 3.7111E−03 −4.4086E−042.0714E−05 7.8541E−07 −1.0551E−08 −5.8176E−09

Table 11 and table 12 show the inflexion points and the arrest pointdesign data of the camera optical lens 30 lens in embodiment 3 of thepresent invention.

TABLE 11 Inflexion point Inflexion point number Inflexion point position1 position 2 R1 R2 1 0.815 R3 2 0.615 1.085 R4 R5 R6 R7 2 0.505 1.015 R82 0.095 1.305 R9 R10 R11 1 1.805 R12 1 2.195 R13 1 1.535 R14 1 0.705

TABLE 12 Arrest point number Arrest point number 1 R1 R2 R3 R4 R5 R6 R7R8 1 0.155 R9 R10 R11 R12 R13 R14 1 1.545

FIG. 10 and FIG. 11 show the longitudinal aberration and lateral colorschematic diagrams after light with a wavelength of 435.8 nm, 486.1 nm,546.1 nm, 587.6 nm and 656.3 passes the camera optical lens 30 in thethird embodiment. FIG. 12 shows the field curvature and distortionschematic diagrams after light with a wavelength of 546.1 nm passes thecamera optical lens 30 in the third embodiment.

The following table 13, in accordance with the above conditions, liststhe values in this embodiment corresponding with each conditionexpression. Apparently, the camera optical system of this embodimentsatisfies the above conditions.

In this embodiment, the pupil entering diameter of the camera opticallens is 2.289 mm, the full vision field image height is 3.475 mm, thevision field angle in the diagonal direction is 80.00°, it haswide-angle and is ultra-thin, its on-axis and off-axis chromaticaberrations are fully corrected, and it has excellent opticalcharacteristics.

TABLE 13 Embodiment Embodiment Embodiment 1 2 3 f 4.075 4.070 4.074 f14.876 5.286 5.979 f2 −19.819 −24.356 −40.768 f3 −18.316 −20.473 −22.441f4 15.244 13.557 13.192 f5 2.168 2.077 2.122 f6 −9.133 −8.606 −7.473 f7−2.500 −2.396 −2.666 f3/f4 −1.202 −1.510 −1.701 (R1 + R2)/(R1 − R2)−1.766 −1.984 −2.342 (R3 + R4)/(R3 − R4) 6.283 7.605 11.665 (R5 +R6)/(R5 − R6) −3.694 −4.124 −4.381 (R7 + R8)/(R7 − R8) −1.295 −1.078−1.086 (R9 + R10)/(R9 − R10) 1.163 1.191 1.198 (R11 + R12)/(R11 − R12)−1.713 −1.755 −1.465 (R13 + R14)/(R13 − R14) 0.084 0.194 −0.048 f1/f1.197 1.299 1.468 f2/f −4.864 −5.984 −10.007 f3/f −4.495 −5.030 −5.508f4/f 3.741 3.331 3.238 f5/f 0.532 0.510 0.521 f6/f −2.241 −2.115 −1.834f7/f −0.614 −0.589 −0.654 d1 0.583 0.568 0.551 d3 0.365 0.389 0.401 d50.214 0.217 0.210 d7 0.462 0.475 0.501 d9 0.741 0.790 0.690 d11 0.4660.431 0.448 d13 0.300 0.300 0.299 Fno 1.780 1.780 1.780 TTL 5.608 5.6785.686 d5/TTL 0.038 0.038 0.037 n1 1.5441 1.5441 1.5441 n2 1.6510 1.65101.6510 n3 1.6422 1.6422 1.6422 n4 1.5441 1.5441 1.5441 n5 1.7067 1.74651.7853 n6 1.7149 1.7513 1.7548 n7 1.5352 1.5352 1.5352

It is to be understood, however, that even though numerouscharacteristics and advantages of the present exemplary embodiments havebeen set forth in the foregoing description, together with details ofthe structures and functions of the embodiments, the disclosure isillustrative only, and changes may be made in detail, especially inmatters of shape, size, and arrangement of parts within the principlesof the invention to the full extent indicated by the broad generalmeaning of the terms where the appended claims are expressed.

What is claimed is:
 1. A camera optical lens comprising, from an objectside to an image side comprises in sequence: a first lens, a secondlens, a third lens, a fourth lens, a fifth lens, a sixth lens and aseventh lens; wherein the camera optical lens satisfies the followingconditions: 1

f1/f

1.5; 1.7

n5

2.2; −2

f3/f4

2; −10

(R13+R14)/(R13−R14)

10; 1.7

n6

2.2; where f: The focal length of the camera optical lens; f1: the focallength of the first lens; f3: the focal length of the third lens; f4:the focal length of the fourth lens; n5: the refractive power of thefifth lens; n6: the refractive power of the sixth lens; R13: thecurvature radius of object side surface of the seventh lens; R14: thecurvature radius of image side surface of the seventh lens.
 2. Thecamera optical lens as described in claim 1, wherein the first lens ismade of plastic material, the second lens is made of plastic material,the third lens is made of plastic material, the fourth lens is made ofplastic material, the fifth lens is made of glass material, the sixthlens is made of glass material, the seventh lens is made of plasticmaterial.
 3. The camera optical lens as described in claim 1, whereinthe first lens has a positive refractive power with a convex object sidesurface and a concave image side surface; the camera optical lensfurther satisfies the following conditions: −4.68

(R1+R2)/(R1−R2)

−1.18; 0.28

d1

0.88; where R1: the curvature radius of the object side surface of thefirst lens; R2: the curvature radius of the image side surface of thefirst lens; d1: the thickness on-axis of the first lens.
 4. The cameraoptical lens as described in claim 1, wherein the second lens has anegative refractive power with a convex object side surface and it's aconcave image side surface; the camera optical lens further satisfiesthe following conditions: −20.01

f2/f

−3.24; 3.14

(R3+R4)/(R3−R4)

17.5; 0.18

d3

0.6; where f: the focal length of the camera optical lens; f2: the focallength of the second lens; R3: the curvature radius of the object sidesurface of the second lens; R4: the curvature radius of the image sidesurface of the second lens; d3: the thickness on-axis of the secondlens.
 5. The camera optical lens as described in claim 1, wherein thethird lens has a negative refractive power with a concave object sidesurface and a convex image side surface; the camera optical lens furthersatisfies the following conditions: −11.02

f3/f

−3; −8.76

(R5+R6)/(R5−R6)

−2.46; 0.1

d5

0.33; where f: the focal length of the camera optical lens; f3: thefocal length of the third lens; R5: the curvature radius of the objectside surface of the third lens; R6: the curvature radius of the imageside surface of the third lens; d5: the thickness on-axis of the thirdlens.
 6. The camera optical lens as described in claim 1, wherein thefourth lens has a positive refractive power with a convex object sidesurface and a concave image side surface; the camera optical lensfurther satisfies the following conditions: 1.62

f4/f

5.61; −2.59

(R7+R8)/(R7−R8)

−0.72; 0.23

d7

0.75; where f: the focal length of the camera optical lens; f4: thefocal length of the fourth lens; R7: the curvature radius of the objectside surface of the fourth lens; R8: the curvature radius of the imageside surface of the fourth lens; d7: the thickness on-axis of the fourthlens.
 7. The camera optical lens as described in claim 1, wherein thefifth lens has a positive refractive power with a concave object sidesurface and a convex image side surface; the camera optical lens furthersatisfies the following conditions: 0.26

f5/f

0.8; 0.58

(R9+R10)/(R9−R10)

1.8; 0.34

d9

1.19; where f: the focal length of the camera optical lens; f5: thefocal length of the fifth lens; R9: the curvature radius of the objectside surface of the fifth lens; R10: the curvature radius of the imageside surface of the fifth lens; d9: the thickness on-axis of the fifthlens.
 8. The camera optical lens as described in claim 1, wherein thesixth lens has a negative refractive power with a concave object sidesurface and a convex image side surface; the camera optical lens furthersatisfies the following conditions: −4.48

f6/f

−1.22; −3.51

(R11+R12)/(R11−R12)

−0.98; 0.22

d11

0.7; where f: The focal length of the camera optical lens; f6: the focallength of the sixth lens; R11: the curvature radius of the object sidesurface of the sixth lens; R12: the curvature radius of the image sidesurface of the sixth lens; d11: the thickness on-axis of the sixth lens.9. The camera optical lens as described in claim 1, wherein the seventhlens has a negative refractive power with a concave object side surfaceand a concave image side surface; the camera optical lens furthersatisfies the following conditions: −1.31

f7/f

−0.39; 0.15

d13

0.45; where f: the focal length of the camera optical lens; f7: thefocal length of the seventh lens; d13: the thickness on-axis of theseventh lens.
 10. The camera optical lens as described in claim 1,wherein the total optical length TTL of the camera optical lens is lessthan or equal to 6.25 millimeters.
 11. The camera optical lens asdescribed in claim 1, wherein the aperture F number of the cameraoptical lens is less than or equal to 1.83.